CVE-2026-45732

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 77% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, the OAuth1 and OAuth2 credential reconnect endpoints authorized access using credential:read rather than credential:update. An authenticated user with read-only access to a shared credential could initiate an OAuth reconnect flow and overwrite the stored token material for that credential with tokens bound to an external account they control. Workflows relying on the affected credential would subsequently execute under the attacker's OAuth identity, enabling data exfiltration to attacker-controlled external services and persistent takeover of shared integrations. This vulnerability is fixed in 1.123.43, 2.22.1, and 2.20.7.

CVSS v3
8.1
EG Score
8.1(medium)
EPSS
23.4%
KEV
Not listed

Published

June 23, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 23, 2026
Patch available. Sources: github.
github Patch Available

Cross-user Authorization Bypass in Dynamic Credential OAuth Endpoints · Advisory · n8n-io/n8n · GitHub

https://github.com/n8n-io/n8n/security/advisories/GHSA-6h4j-wcr9-2vg7

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 59× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 06:13 UTCEPSS rescore
  2. 2026-07-13 01:53 UTCEG score recompute
  3. 2026-07-12 13:05 UTCEG score recompute
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-12 00:16 UTCEG score recompute
  6. 2026-07-11 11:29 UTCEG score recompute
  7. 2026-07-11 08:27 UTCEPSS rescore
  8. 2026-07-10 22:43 UTCEG score recompute
  9. 2026-07-10 09:54 UTCEG score recompute
  10. 2026-07-09 21:07 UTCEG score recompute
  11. 2026-07-09 19:10 UTCEPSS rescore
  12. 2026-07-09 08:21 UTCEG score recompute
  13. 2026-07-08 19:35 UTCEG score recompute
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-08 06:47 UTCEG score recompute
  16. 2026-07-07 18:01 UTCEG score recompute
  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-07 03:16 UTCEG score recompute
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 14:29 UTCEG score recompute
  21. 2026-07-06 02:23 UTCEPSS rescore
  22. 2026-07-06 01:41 UTCEG score recompute
  23. 2026-07-05 12:53 UTCEG score recompute
  24. 2026-07-05 02:30 UTCEPSS rescore
  25. 2026-07-05 00:01 UTCEG score recompute
Show 34 more
  1. 2026-07-04 11:14 UTCEG score recompute
  2. 2026-07-04 06:31 UTCEPSS rescore
  3. 2026-07-03 22:24 UTCEG score recompute
  4. 2026-07-03 09:37 UTCEG score recompute
  5. 2026-07-02 20:50 UTCEG score recompute
  6. 2026-07-02 08:03 UTCEG score recompute
  7. 2026-07-01 19:15 UTCEG score recompute
  8. 2026-07-01 15:07 UTCEPSS rescore
  9. 2026-07-01 06:29 UTCEG score recompute
  10. 2026-06-30 23:22 UTCEPSS rescore
  11. 2026-06-30 17:42 UTCEG score recompute
  12. 2026-06-30 04:56 UTCEG score recompute
  13. 2026-06-29 15:46 UTCEG score recompute
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-29 02:59 UTCEG score recompute
  17. 2026-06-28 14:12 UTCEG score recompute
  18. 2026-06-28 14:07 UTCEPSS rescore
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-28 01:25 UTCEG score recompute
  22. 2026-06-27 12:38 UTCEG score recompute
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-26 23:51 UTCEG score recompute
  25. 2026-06-26 11:04 UTCEG score recompute
  26. 2026-06-25 20:53 UTCEG score recompute
  27. 2026-06-25 13:49 UTCEPSS rescore
  28. 2026-06-25 08:06 UTCEG score recompute
  29. 2026-06-24 19:19 UTCEG score recompute▼ 0.20
  30. 2026-06-24 16:02 UTCNVD updateCVSS v3 → 8.1
  31. 2026-06-24 14:05 UTCEPSS rescore
  32. 2026-06-24 06:22 UTCEG score recompute
  33. 2026-06-23 17:35 UTCEG score recompute
  34. 2026-06-23 17:34 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-45732?
CVE-2026-45732 is a high vulnerability published on June 23, 2026. n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, the OAuth1 and OAuth2 credential reconnect endpoints authorized access using credential:read rather than credential:update. An authenticated user with read-only access to a shared credential could initiate an…
When was CVE-2026-45732 disclosed?
CVE-2026-45732 was first published in the National Vulnerability Database on June 23, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45732 actively exploited?
CVE-2026-45732 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45732?
CVE-2026-45732 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-45732?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45732, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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